I have a NextJS app that keeps spewing out these warnings every now and then:

<w> [webpack.cache.PackFileCacheStrategy] Serializing big strings (118kiB) impacts deserialization performance (consider using Buffer instead and decode when needed)
<w> [webpack.cache.PackFileCacheStrategy] Serializing big strings (115kiB) impacts deserialization performance (consider using Buffer instead and decode when needed)
<w> [webpack.cache.PackFileCacheStrategy] Serializing big strings (116kiB) impacts deserialization performance (consider using Buffer instead and decode when needed)
<w> [webpack.cache.PackFileCacheStrategy] Serializing big strings (118kiB) impacts deserialization performance (consider using Buffer instead and decode when needed)
<w> [webpack.cache.PackFileCacheStrategy] Serializing big strings (117kiB) impacts deserialization performance (consider using Buffer instead and decode when needed)
<w> [webpack.cache.PackFileCacheStrategy] Serializing big strings (119kiB) impacts deserialization performance (consider using Buffer instead and decode when needed)
<w> [webpack.cache.PackFileCacheStrategy] Serializing big strings (115kiB) impacts deserialization performance (consider using Buffer instead and decode when needed)
<w> [webpack.cache.PackFileCacheStrategy] Serializing big strings (116kiB) impacts deserialization performance (consider using Buffer instead and decode when needed)
<w> [webpack.cache.PackFileCacheStrategy] Serializing big strings (118kiB) impacts deserialization performance (consider using Buffer instead and decode when needed)
<w> [webpack.cache.PackFileCacheStrategy] Serializing big strings (117kiB) impacts deserialization performance (consider using Buffer instead and decode when needed)
<w> [webpack.cache.PackFileCacheStrategy] Serializing big strings (118kiB) impacts deserialization performance (consider using Buffer instead and decode when needed)
<w> [webpack.cache.PackFileCacheStrategy] Serializing big strings (115kiB) impacts deserialization performance (consider using Buffer instead and decode when needed)
<w> [webpack.cache.PackFileCacheStrategy] Serializing big strings (116kiB) impacts deserialization performance (consider using Buffer instead and decode when needed)
<w> [webpack.cache.PackFileCacheStrategy] Serializing big strings (118kiB) impacts deserialization performance (consider using Buffer instead and decode when needed)
<w> [webpack.cache.PackFileCacheStrategy] Serializing big strings (117kiB) impacts deserialization performance (consider using Buffer instead and decode when needed)
<w> [webpack.cache.PackFileCacheStrategy] Serializing big strings (119kiB) impacts deserialization performance (consider using Buffer instead and decode when needed)
<w> [webpack.cache.PackFileCacheStrategy] Serializing big strings (115kiB) impacts deserialization performance (consider using Buffer instead and decode when needed)
<w> [webpack.cache.PackFileCacheStrategy] Serializing big strings (116kiB) impacts deserialization performance (consider using Buffer instead and decode when needed)
...

What do I do with these? How do I find the source of the problem? Or should I just ignore these?